Register custom, component lifecycle-scoped AJAX endpoint ?

[Tobias Gierke]

Hi,

We have a large (>350 pages) Wicket application that is currently using 
server-side charts (JFreeChart) but are looking for a smooth way to 
migrate to client-side D3.js charts. Ideally we would like to be able to 
do something like this:

ChartImage img = ...
img.add( new JSONBehaviour() {

    public String getChartDataJSON() {
       return ....;
    }
} ;

The behaviour would write a callback URL as an attribute to the markup. 
The callback URL would be an endpoint that returns a plain AJAX response 
(the dataset to render for this chart). The tricky part is dynamically 
registering a callback URL that is scoped to the life-cycle of the 
component and returns a plain AJAX response. Since something similar 
must already be happening for Wickert AJAX behaviours, is there a way I 
can piggy-back on the same Wicket-internal mechanism to dynamically 
register my own AJAX endpoint ?

Thanks in advance,
Tobias